BA6792 Просмотр технического описания (PDF) - ROHM Semiconductor

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BA6792

2-channel BTL driver for CD players

ROHM Semiconductor 

Optical disc ICs

FApplication example (BA6792FP)

BA6792FP / BA6792FP-Y

FOperation notes

(1) The BA6792FP and BA6792FP-Y have an internal

thermal shutdown circuit. The output current is muted

when the chip temperature rises above 175_C (typically).

The driver circuit is restored when the chip temperature

rises above 150_C (typically).

(2) The output current can be muted by opening the

mute pin voltage or lowering it below 0.5V. This pin

should be pulled up above 2.0V during normal operation.

(3) Muting also occurs when the bias pin voltage drops

below 1.4V (typically). This pin should stay above 2.0V

during normal operation.

(4) Muting occurs during thermal shutdown, mute-on

operations or a drop in the bias pin voltage. In each case,

only the drivers are muted. During muting, the output pins

remain at the internal bias voltage, roughly (VCC / 2).

(5) Attach a bypass capacitor (roughly 0.1µF) between

the power supplies, at the base of the IC.

(6) The radiating fin is connected to the package’s in-

ternal GND, but should also be connected to an external

ground.

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